Mary Ann Sieghart – Biography
Last update: April 8, 2026Executive profile
Mary Ann Sieghart joined Pantheon International Participations in 2019.
Mary Ann Sieghart is currentlyDirector at Guardian Media Group - View - Guardian Media Group org chart
Senior Independent Director at Pantheon International Participations - View - Pantheon International Participations org chart
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Company Colleagues
- At Guardian Media Group, Mary Ann Sieghart has 90 colleagues including Anna Bateson (CEO), Coram Williams (Director)…
- At Pantheon International Participations, Mary Ann Sieghart has 18 colleagues including Kathryn Leaf (CEO), Zoe Clements (Director)…
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- In the Holding industry, Mary Ann Sieghart has 19,950 colleagues in 1,274 companies located in 74 countries. 9,180 executive movements have been recorded in the last 12 months. Learn more about Holding.
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